Translated by
2014/10/15 14:59:51

4K Ultra HD

In the next several years the standard of a digital video Full HD also known as 1080p, will be gradually replaced with more modern – 4K of Ultra HD.

Is 4K the new, modern standard of digital videos of permissions developed for spheres of the film industry, animation and computer graphics. The main advantage of this standard is that it provides much more more high image quality and significant increase in detailing of the picture that has huge value for large-format dynamic images.

Having permission 3840 × 2160, standard 4K provides more than four times bigger permission in comparison with 1080p (1920×1080). Change of an aspect ratio for format 4K is reached due to change of vertical permission, at this horizontal permission remains fixed. For example, 4096×2304 — the frame size with an aspect ratio 16:9, 4096×3072 — an aspect ratio 4:3. In the table examples of permissions in format 4K are given:

Transfer and switching of video with the resolution of 4K:

Signal transmission 4K of video can be performed via the HDMI interface, since the HDMI 1.4 specification. Upon, all high-speed HDMI cables will support resolution 4K if they are connected to the displays supporting 4K.

The interface actually supports 2 formats, both from which are supported in the HDMI 1.4 specification:

  • 3840 pixels on width on 2160 pixels on height
  • 4096 pixels on width on 2160 pixels on height